Sefism University to Job-Ready Cheat Sheet

What this cheat sheet is

The University to job-ready cheat sheet is the quick-revision companion to the University to job-ready roadmap. It brings together the core CS subjects that hiring processes draw on (OOP, Git and engineering practice, data structures and algorithms, databases, operating systems and networks) with the practical side: projects, choosing a direction, getting experience, and how applications and hiring stages work.

Each concept is a short entry: what it is, why it matters, and usually an example or a common mistake. Revise one chapter a week alongside your courses, and come back before assessments, coding rounds or the start of a new semester.

Editions

The sheet follows the roadmap's three degree stages, and a few entries change with each:

• First or second year: ten chapters, including getting experience before final year, with a concept on building one real project per semester. About 70 concepts.
• Third year: ten chapters, adding the final year project built properly, your project's architecture diagram, applicant tracking systems and technical rounds. About 73 concepts.
• Final year or graduated: nine chapters. The early-experience chapter is dropped; the third-year additions stay, alongside a flagship project you can defend and a daily coding practice habit. About 69 concepts.

Chapter by chapter

1. Programming and object-oriented design (8 concepts). Classes and objects, encapsulation, inheritance, polymorphism, abstraction, interfaces and abstract classes, composition over inheritance, SOLID, and exceptions and error handling.
2. Software engineering practice and Git (8 concepts). Commits and messages, branches and pull requests, merging, conflicts and rebase, undoing mistakes in Git, unit and integration tests, code review, debugging, and SDLC and Agile.
3. Data structures and algorithms (10 concepts). Big-O, arrays and strings, hash maps and sets, stacks and queues, linked lists, trees and BSTs, graphs with BFS and DFS, recursion and dynamic programming, sorting and binary search, and problem-solving patterns.
4. Database management systems (6 concepts). The relational model and keys, normalisation and normal forms, SQL joins and GROUP BY, indexes, transactions and ACID, and SQL versus NoSQL.
5. Operating systems (6 concepts). Processes and threads, CPU scheduling, race conditions, mutexes and semaphores, deadlock, virtual memory and paging, and stack versus heap memory.
6. Computer networks and the web (7 concepts). OSI and TCP/IP layers, IP addresses and ports, TCP versus UDP, DNS, HTTP, HTTPS and status codes, what happens when you open a URL, and REST APIs and JSON.
7. Projects and portfolio. Scoping a project you can finish, deployment and a live link, a project README, your GitHub profile, plus edition-specific entries on semester projects, the final year project and architecture diagrams.
8. Choosing a direction and going deeper. Choosing web, mobile, AI or cloud, one framework learnt properly, scaling basics, caching, and load balancing and database replicas.
9. Getting experience before final year (6 concepts, first to third year). Internships, open source contributions, programmes like Google Summer of Code, freelance work for real clients, hackathons and campus developer groups, and a weekly learning habit.
10. Resume, network and the hiring process. A one-page resume built on projects, bullets with results and numbers, a complete LinkedIn profile, networking and referrals, a weekly application rhythm, online assessments, behavioural questions and STAR stories, learning from every rejection, and evaluating and negotiating offers.

Tips worth pinning

• Write code every week, whether or not an assignment is due.
• Learn each data structure by what it is fast at, not by memorising implementations.
• Finish and deploy one project before starting the next.
• Explain your approach out loud as you solve problems, even when practising alone.

Each edition adds its own, for example applying for internships in second year even if you feel unready (first and second year), or starting to apply at the beginning of final year rather than after your exams.

How to use it with the roadmap

• During term, pair each chapter with the course you are taking: the DBMS chapter with your databases course, the OS chapter with operating systems. Check you can explain each concept in your own words, not just recognise it.
• Before an online assessment or technical round, reread chapters 3 to 6. They are the subjects these stages draw on most.
• At the start of each semester, reread chapters 7 and 8 and decide what this semester's project will be.

How it works on Sefism

Everything on Sefism is free to learn from. The public page at University to job-ready cheat sheet shows every chapter title, with the first two chapters open in full. Later chapters show their title, a short introduction and how many concepts they hold.

Keeping the sheet uses credits, and it is yours for good after that. Adding the University to job-ready roadmap to your dashboard also opens this sheet, so if you plan to follow the roadmap you do not need to keep the sheet separately. New members get starting credits when they join, and the first roadmap is free. Create a free account to get started, and if a concept still does not make sense after reading it, ask Tauseef a question.

Related on Sefism

• Graduating with theory but cannot build software
• Should I focus on grades or real-world skills?
• Fundamentals worth learning as a software engineer
• The CS core subjects cheat sheet, for deeper revision of OS, networks and databases

Frequently asked questions

Is this enough to revise for my university exams? It covers the core ideas in each subject at revision depth. For exam-level depth in OS, networks and databases, the CS core subjects cheat sheet goes further.

Which edition should I choose? The one for your current year. The entries on projects, experience and applications are written for where you are now.

Does it cover the hiring process? Yes, the last chapter walks through each stage, from resume and referrals to online assessments, behavioural stories and offers.